Truss pad



March l1, 1930. F. E. CHESTERMAN TRUS S PAD Filed May 7, 1928 I N V EN TOR. j''afz/E- @s/m22 A TTORNEYS.

Patented Mar. 11, 1930 FRANK E. CHESTERMAN, OF NOBLE, PENNSYLVANIA TRUSS PAD Application filed May 7,

This invention, generally stated, relates to truss pads and has more particular relation to a pad of the character stated in which there is provided a soft rubber front pad having arranged therein an internal plate or disc, operatively connected with said pad, and in which there is provided a cross strap secured with respect to the pad and casing and entirely independent of the belt strap which has frictional engagement entirely independent of the cross strap.

The leading object of the present invention is to provide a simple, compact, efficient, and inexpensive truss pad the parts of which are so arranged that the belt strap has frictional engagement with the truss parts independent of the cross strap.

A further object of the present invention is to provide a truss pad of the character above stated having a soft, rubber front pad and an internal plate or disc cooperatively engaging with the same, which pad is arranged to be received by a rigid casing, preferably of rubber.

is to provide an arrangement of parts wherein the above mentioned plate or disc, pad,

and casing are secured together by a screw,

y and in which a belt strap is provided for frictionally engaging the head of the screw.

Other and further objects not at this time appearing will be hereinafter more fully described.

The invention consists of the novel construction hereinafter described and finally claimed.

The nature, characteristic features and scope of the invention will be more fully understood from the following description taken in connection with the accompanying drawings forming part thereof, and in which:

Fig. 1, is a fragmentary view in perspecv tive illustrating a truss pad embodying features of the invention.

Fig. 2, is a view in rear elevation of the parts shown in Fig. l.

Fig. 3, is a view in vertical section taken upon the line 3 3 of Fig. 2.

A further object of the present inventionl 1928. Serial No. 275,604.

Fig. 4, is a view in horizontal section taken upon the line 4-4 of Fig. 2.

Fig. 5, is a view in rear elevation illustrating the rear portion of the casing parts with the soft pad removed.

Fig. 6, is a view in vertical section taken upon the line 6-6 of Fig. 5.

Fig. 7, is a detached view in rear elevation of the pad shown in the foregoing figures and hereinafter more specifically referred to.

Fig. 8, is a view in section taken upon the line 8-8 of Fig. 7

Fig. 9, is a top or plan view of the disc shown in the foregoing figures and hereinafter more specifically referred to.

For the purpose of illustrating my invention I have shown in the accompanying drawings one form thereof which is at present preferred by me, since the same has been found in practice to give satisfactory and reliable results, although it is to be understood that the various instrumentalities of which my in* vention consists can be variously arranged and organized and that my invention is not limited to the precise arrangement and organization of the instrumentalities as herein shown and described.

Generally stated, the invention consists of a truss structure embodying a soft cushioning pad, there being arranged within the inner periphery thereof a plurality of spaced lug receiving openings adapted to accommodate lugs as carried by a rigid disc and in which a conventional cross strap, disc, and casing are secured together by means of a screw; and further consists in utilizing the head and the screw above recited for providing tension for the belt strap, thereby frictionally to engage the head of the screw without engagement with the cross strap.

Referring now to the drawings in detail, the reference numeral l designates the belt of the truss, and 2 the cross strap, both being of conventional form. 3 designates the frame or casing for supporting a soft cushioning pad, designated by reference numeral 4. The casing 8 is provided with a slotted portion 5 to accommodate the belt 1. The cross strap 2 is projected through the bevelled opening 6 in casing 3 and is apertured as at 7, see Figs. 100

3 and 4. This aperture 7, when the cross strap is positioned within casing 3, registers with openings 8 and 9 as penetrating the casing 3. Fitted to the casing 3 is a pad of sott rubber, designated 4, as previously described. The pad 4 is provided with an internal, annularly arranged groove 11, within which is adapted to be fitted -tor illustrative purposes the bevelled, annular fiange 13 of the pad 4. Extended horizontally through the flanged part 13 of pad 4 is a plurality of horizontally arranged openings 14. three being shown in the drawings, see Figs. 7 and 8. These openings 14 are horizontally arranged and extend through the fianged parts 13 of the pad 4. Adapted to be tted within a pad 4 is a plate or disc 15, centrally apertured as at 16, and provided with a plurality of lugs 17, three of which are shown' in the drawings. These lugs in practice are adapted to engage the openings 14 when the plate or disc 15 is introduced within the p ad 4. With the plate or disc 15 fitted to place with its lugs 17 engaging the openings 14 of the pad 4 and the pad 4 engaging the casing 3, screw 18 is fitted to place, the same being passed through openings 8 and 9 in casing 3, through cross strap 2, and caused to have screw threaded engagement with plate or disc 15, the aperture 16 in plate or disc 15 being screw threaded to accept the screw 18. By this arrangement and construction of parts, pad 4, disc 15, cross strap 2, and casing 3 are securely clamped together, as clearly illustrated in Figs. 3 and 4. In the connection it is to be noted that the end of cross strap 2 is firmly clamped between the inner face of casing 3 and the inner face of plate or disc 15, and that the free end of cross strap 2 is projected through the bevelled opening 6, as clearly shown in F ig. 3. Arranged at right angles with respect to cross strap 2 is a main belt 1 arranged to go around the waist of the wearer. This belt 1 is extended through openings 5, shown in Fig. 4, and is adapted frictionally to engage the head of screw 18, as designated as at 19 in Fig. 4. In the connection it is to be noted that the cross strap 2 is anchored at one end within the flexible pad 4, and is arranged at right angles with respect to the belt 1. Further, it is to be noted that the cross strap 2 is entirely free and independent of the belt 1 so that no frictional contact occurs between the cross strap 2 and belt 1. All frictional contact as mparted to belt 1 is caused by the arrangement of belt 1 with the head of screw 18, as shown in F ig. 4.

The frictional engagement of the belt strap 1 with the head of the screw 18 serves to provide an arrangement and construction of parts in which the pad is efficiently held in place and will not slip sidewise upon the cross strap 2, which' is an important item.

It is further to be noted that the transverse elastic band or cross strap 2 is arranged through a slot which is at an angle to the underside of the hard rubber pad, which slot is sufficiently removed from the band 1 so that the cross strap does not touch the body or belt band 1.

I am aware that the invention may be embodied in other specific forms without departing 'from the spirit or essential attributes thereof, and I therefore desire the present embodiment to be considered in all respects as illustrative and not restrictive, reference being had to the appended claims rather than to the foregoing description to indicate the scope of the invention.

Iaving thus described my invention, what I claim as new, and desire to secure by Letters Patent, is:

1. A truss structure consisting of a soft cushioning flanged pad having spaced radially arranged lug receiving openings in the fiange of said pad, a rigid disc fitted within said pad, radially arranged lugs on said disc for engaging said openings, said disc having a central screw threaded aperture therethrough, a rigid casing arranged to receive said pad, said casing` having a central aperture therethrough in alignment with the disc aperture, a cross strap fitted to said easing and having an aperture therethrough in alignment with the aforesaid apertures, a screw having a head which screw is arranged to penetrate said casing and cross strap and to engage'said disc, and a belt engaging said casing at right angles to the cross strap and frictionally engaging the head of said screw without engagement with said cross strap.

2. A truss structure consisting of a soft cushioning pad having an annular rim and having spaced radially disposed lug receiving openings therein, a rigid disc fitted within said pad, radiali",7 disposed lugs on said disc for engaging said openings, said disc having a central screw threaded aperture therethrough, a rigid casing arranged to receive said pad,said casinghaving an aperture therethrough in alignment with the disc aperture, a cross strap fitted to said casing and having an aperture therethrough in alignment with the aforesaid apertures, a screw having a head which screw is arranged to penetrate said casing and cross strap and to engage said disc, and a belt engaging said casing at right angles to the cross strap and frictionally engaging the head of said screw without engagement with said cross strap.

3. A. truss structure consisting of a soft cushioning pad having spaced lug receiving openings therein, a` rigid disc fitted within said pad, lugs on said disc for engaging said openings, said disc having a central screw threaded aperture therethrough, a rigid casing arranged to receive said pad, said casing having an aperture therethrough in alignment with the disc aperture and also provided With a slotted portion to receive a cross strap, said slotted portion being bevelled to prevent Contact of said belt and cross strap thereby preventing friotional Contact between said belt and cross strap, a cross strap tted to said casing and having an aperture therethrough in alignment with the aforesaid apertures, a sereW having a head Which screw is arranged to penetrate said easing and cross strap and to engage said disc, and a belt engaging said casing at right angles to the cross strap and frietionally engaging the head of said screw Without engagement With said cross strap.

FRANK E. CHESTERMAN. 

